#!/usr/bin/ruby

# DO NOT EDIT - This file is being maintained by Chef

require "fileutils"

tileDirs = [
<% node[:tile][:styles].each_key do |name| -%>
  "/srv/tile.openstreetmap.org/tiles/<%= name %>",
<% end -%>
]

tilesExpired = 0
tilesIgnored = 0

expiredTime = Time.new(2000, 1, 1)

Dir.glob("/var/lib/replicate/expire-queue/changes-*.txt").sort.each do |f|
  File.open(f, "r") do |file|
    file.each do |line|
      z, x, y = line.split("/")

      z = z.to_i + 3
      x = x.to_i * 8
      y = y.to_i * 8

      hash = []

      1.upto(5) do
        hash.push(((x & 0xf) << 4) | (y & 0xf))

        x = x >> 4
        y = y >> 4
      end

      tileName = "#{z}/#{hash[4]}/#{hash[3]}/#{hash[2]}/#{hash[1]}/#{hash[0]}.meta"

      tileDirs.each do |tileDir|
        if File.exist?("#{tileDir}/#{tileName}")
          FileUtils.touch("#{tileDir}/#{tileName}", :mtime => expiredTime)

          tilesExpired = tilesExpired + 1
        else
          tilesIgnored = tilesIgnored + 1
        end
      end
    end
  end

  File::unlink(f)
end

puts "Meta tiles expired: #{tilesExpired}"
puts "Meta tiles not present: #{tilesIgnored}"